Free calculators for wholesalers, importers, and small manufacturers
No signup required. Results in under 2 minutes. Built for businesses that buy or import product and manage stock by SKU — not for online stores or hospitality.
Available calculators
- Reorder Point CalculatorCalculate when to place your next supplier order based on your daily demand, lead time, and safety stock.
- Bulk Reorder Point Calculator (CSV)Upload your sales history as a CSV and calculate the reorder point and safety stock for every SKU at once, accounting for real demand variability.
- Supplier/Order Pattern AnalyzerUpload your purchase-order history as a CSV and detect actual vs. quoted lead time, each supplier's reliability, and your concentration risk.
- Landed Cost CalculatorUpload your shipments as a CSV and calculate the true per-unit cost once freight, duties, and other fees are folded in — with a free account you'll also see the cost breakdown across your full history.
- EOQ CalculatorUpload your catalog as a CSV and calculate the order quantity that minimizes ordering + holding cost for every SKU — with a free account you'll see the potential savings versus your current order quantities.
- MOQ CalculatorUpload your catalog as a CSV and calculate how many days of demand each supplier's minimum order quantity (MOQ) actually represents — with a free account you'll see capital tied up and which SKUs to prioritize renegotiating.
- Gross Margin CalculatorUpload your catalog as a CSV and calculate the gross margin for every SKU — with a free account you'll see the sales-weighted average margin and how it's trending versus your last upload.
- Days of Inventory CalculatorUpload your catalog as a CSV and calculate how many days of coverage each SKU's current stock provides — with a free account you'll see which SKUs need attention first and the trend versus your last upload.
- Lead Time CalculatorUpload your order history as a CSV and compare actual vs. quoted lead time, order by order — with a free account you'll see a recommended safety buffer and the recent trend.
- Batch Size CalculatorUpload your products as a CSV and calculate the production batch size that minimizes setup + holding cost — with a free account you'll see total production load and which products dominate it.
We're still adding more calculators. If you'd like us to notify you about what's next, say so on any calculator above.
From the blog
- Cutting changeover time 30-50% isn't just about speed — it shifts your optimal batch sizeSMED methodology cuts changeover time by 30-50%, with real cases showing up to 30% improvement and OEE above 70%. We calculate how this shrinks your optimal batch size and the capital tied up per production run.
- Average lead time isn't the problem — variability isA supplier with a 30-day average lead time can deliver anywhere from 20 to 50 days. Using industry on-time delivery (OTD) benchmarks, we calculate the real safety buffer you need based on variability, not just the average.
- How many days of coverage does your stock have? 32% of wholesalers sit at 61-90 days — and 19% don't even knowThe 2026 Phocas Wholesale Distribution Inventory Trends report reveals nearly half of wholesalers carry 1-3 months of stock as a buffer, and 19% don't know their own number. We show you how to calculate your real per-SKU DIO.
- Is your gross margin competitive? What the official data says by wholesale subsector in SpainOfficial Idescat/INE data shows gross margins from 16.7% to 34.7% depending on the wholesale subsector, both climbing since 2022. We show you how to calculate your real sales-weighted average margin, not the misleading simple average.
- Chinese MOQs are down 37% — but 85% of importers don't know they can negotiateChinese manufacturing overcapacity has cut the average MOQ 37% on 1688, and 85% of importers don't know suppliers inflate it 30-50% as a tactic. We calculate how much capital your current MOQ ties up.
- What it costs to let stock sit still: 20-30% carrying costs and why EOQ matters more with pricier financingCarrying stock costs 20-30% of its value per year, and financing has gotten pricier in 2026 (Euríbor ≈ 2.3%, higher bank loan rates). We calculate how this shifts your economic order quantity (EOQ).
- The EU scraps the low-value duty exemption: what changes in your landed cost from July 2026Since July 1, 2026 the EU charges a €3 per-line fee on low-value shipments, while Asia-Mediterranean freight is up 15% per the Freightos Baltic Index. We calculate how much your real per-unit cost climbs.
- How much your top supplier really weighs: the HHI index and Brussels' plan to cut single-country dependencySince May 2026 Brussels has required supplier diversification by country under the ReSourceEU plan. Using those thresholds and the HHI index antitrust regulators use, we show you how to calculate the concentration risk in your own supplier base.
- Spanish wholesale stock is up 5.7%: why an average isn't enough for your reorder pointSpain's statistics office just confirmed the biggest jump in wholesale stock in nearly 3 years. Using that data and IHL Group's stockout research, we explain why a flat average isn't enough to calculate your reorder point.
- How much safety stock you need if you import from China in 2026The Cape of Good Hope detour is still adding 10-15 days to shipments from Asia. Using Valenciaport and Puertos del Estado data, we calculate how much extra safety stock you need.